dynasylan sivo 110 e - camsi-x - empresa especializada … · fax: +49-69-218-3967 ... dynasylan ®...

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Product Information

Internet: www.dynasylan.com

E-mail: [email protected]

Evonik Degussa GmbH

Aerosil & Silanes

Weissfrauenstraße 9 D-60287 Frankfurt am Main

Germany

Phone: +49-69-218-5656 Fax: +49-69-218-3967

Evonik Degussa Corporation Aerosil & Silanes

379 Interpace Parkway P.O. Box 677 Parsippany

NJ 07054-0677 USA

Phone:

800-237-6745 (Toll Free) +1-973-541-8513

Fax: +1-973-541-8503

Evonik Degussa (China) Co., Ltd.

Aerosil & Silanes 55, Chundong Road

Xinzhuang Industry Park Shanghai 201108

P.R. China

Phone: +86-21-6119-1052 Fax: +86-21-6119-1075

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Dynasylan® SIVO 110

SIVO® SOL Technology for coating systems

Description Dynasylan

® SIVO 110 resembles a multifunctional, basically VOC-free, water-borne sol-gel

system. It is composed of a silica sol, modified with organofunctional silanes. Dynasylan

® SIVO 110 is an opaque to milky, colorless to slightly yellow, low viscous liquid.

Dynasylan® SIVO 110 can be diluted in water and a variety of common organic solvents. Besides

reactive silanol groups it also contains organic functionalities based on Si-bonded epoxy groups. Fig.1 Distribution of functionalized SiO2 sol-particles in Dynasylan

® SIVO 110 (by laser light

scattering) Dynasylan

® SIVO 110 is predominantly suited as a binder for temperature curing sol-gel coatings

and for sol-gel - based hybrid coatings. Featured specific advantages:

• water-borne

• VOC-free

• forms very thin layers (< 2 µm)

• resistant against boiling water

• exceptional hardness

• thermally stable up to approx. 220 °C


Product Information



Evonik Degussa GmbH

Aerosil & Silanes


Germany

Phone: +49-69-218-5656 Fax: +49-69-218-3967



NJ 07054-0677 USA

Phone:

800-237-6745 (Toll Free) +1-973-541-8513

Fax: +1-973-541-8503




P.R. China

Phone: +86-21-6119-1052 Fax: +86-21-6119-1075

of 5

Technical Data

Properties Value Unit Method

Density (20 °C) approx. 1.14 g/cm³ DIN 51757

Viscosity (20 °C) approx. 7 mPa.s DIN 53015

Flash point >95 °C EN 22719

Boiling point approx. 96 °C ASTM D-1120

pH-value approx. 4.3 DIN 19268

Solid content approx. 35 % 3g / 2h 105 °C

Reactivity Dynasylan

® SIVO 110 resembles a water-borne sol-gel system which does not contain organic

solvents. It does not release alcohols upon hydrolysis contrary to standard functional alkoxysilanes. Dynasylan

® SIVO 110 contains a high concentration of active silanol functions.

Consequently it can chemically bond to surfaces of suited substrates and achieves a high degree of crosslinking by formation of 2- and 3-dimensional siloxane networks. During curing functionalized SiO2 sol-particles align into a densely packed structure and are covalently incorporated into the siloxane network (see fig.2 and 3). This phenomenon serves as an explanation why exceptional hardness and scratch resistance can be achieved with Dynasylan

®

SIVO 110. Additionally a high degree of flexibility is obtained at a considerably low thickness fo the formed layers. Suited substrates: steel, stainless steel, Zn-galvanized steel, aluminum, glass. Dynasylan

® SIVO 110 - based coatings exhibit a state of dryness of 5 (DIN 53150) once dried at

room temperature for 20 min. Complete crosslinking (including reaction of silanol groups) will be reached at temperatures between a minimum of 180 °C and, ideally, 200 – 220 °C. Fig.2 Thermally crosslinked layer of Dynasylan

® SIVO 110 on aluminum substrate (SEM image,

vertically cutted; below: Al-substrate, above: sol-gel coating)


Product Information



Evonik Degussa GmbH

Aerosil & Silanes


Germany

Phone: +49-69-218-5656 Fax: +49-69-218-3967



NJ 07054-0677 USA

Phone:

800-237-6745 (Toll Free) +1-973-541-8513

Fax: +1-973-541-8503




P.R. China

Phone: +86-21-6119-1052 Fax: +86-21-6119-1075

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Fig. 3 SEM image of the dense, highly ordered packing of SiO2 particles in a thermally crosslinked Dynasylan

® SIVO 110 layer. Visualization achieved by O2-plasma etching

Properties Dynasylan

® SIVO 110 is suited as binder component in temperature crosslinking sol-gel coatings

and sol-gel - based hybrid coatings. Dynasylan® SIVO 110 coatings boast of:

• high hardness (pencil hardness up to 5H, depending on formulation)

• excellent scratch and mar resistance

• superior stability in boiling water (Gt0 upon 2 h treatment in water at 100 °C)

• very good adhesion on various substrates

• very good adhesion towards organic top coats (e.g. epoxies)

• sound flexibility (mandrel bending test according to DIN EN ISO 1519: 2 mm)

• very low thickness of formed layers (recommendation: dry layer of < 2 µm)

• excellent resistance against solvents and other chemicals Recommended areas of application:

• corrosion resistant primer systems

• transparent sol-gel top coats which exhibit a temperature resistance of up to 220 °C

• coatings comprising high hardness, which can be additionally improved by introduction of up to 20 wt.-% silica sol

• transparent easy-to-clean sol-gel - top coats upon adding Dynasylan® SIVO 112


Product Information



Evonik Degussa GmbH

Aerosil & Silanes


Germany

Phone: +49-69-218-5656 Fax: +49-69-218-3967



NJ 07054-0677 USA

Phone:

800-237-6745 (Toll Free) +1-973-541-8513

Fax: +1-973-541-8503




P.R. China

Phone: +86-21-6119-1052 Fax: +86-21-6119-1075

of 5

Fig. 4 Polyester coil coating upon a 500 h salt spray test; substrate: zinc plated steel; left: treated with a standard primer based on organic solvents (dry layer: 5 µm), right: treated with Dynasylan

® SIVO 110 as a primer (dry layer: < 1 µm).

Processing Dynasylan

® SIVO 110 can be mixed with water at any proportion. Dilution in common organic

solvents such as ethanol, isopropanol, butyl glycol or methoxy propanol is possible. Dynasylan

® SIVO 110 can be formulated with a variety of water-thinnable binders and other

auxiliary agents such as Tego® Wet 280. As of such e.g. a satisfactory compatibility with acrylate-

based polymer dispersions has been achieved. Nevertheless, the final formulation must be checked towards possible incompatibilities such as phase separation or precipitation. Recommended procedures a.o. are storage or stress tests. Upon addition of acids and bases the pH value of Dynasylan

® SIVO 110 can be varied between

4 and 9. These acid or alkaline additives must be selected with care as flocculation or gelation can occur in contact with certain substances. For neutralization Dynasylan

® SIVO 111 is strongly

recommended. For acidification phosphoric acid may be used. For achievement of easy-to-clean properties Dynasylan

® SIVO 112 is highly recommended.

Dynasylan® SIVO 110 must be protected against freezing temperatures!

Application Dynasylan

® SIVO 110 containing formulations can be sprayed, dipped or applied with a doctor

blade. It is recommended to orient towards a 0.2 - 2 µm thickness of the dry layer (approx. 4 µm of a wet layer equals approx. 1µm of the respective dry layer). Hence the total quantity to be applied on smooth substrates will amount to approx. 5g / m². Generally for spray application an aqueous dilution should be used (e.g. 20 wt.-% Dynasylan

® SIVO 110, 0.06 wt.-% processing

agent, 79.94 wt.-% water). Surfaces of treated substrates must be clean and free of grease and dust.


Product Information



Evonik Degussa GmbH

Aerosil & Silanes


Germany

Phone: +49-69-218-5656 Fax: +49-69-218-3967



NJ 07054-0677 USA

Phone:

800-237-6745 (Toll Free) +1-973-541-8513

Fax: +1-973-541-8503




P.R. China

Phone: +86-21-6119-1052 Fax: +86-21-6119-1075

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Registration

EINECS/ELINCS (EU) Yes

AICS (Australia) No

DSL/NDSL (Canada) No

PICCS (Philippines) No

TSCA (USA) In preparation

IECS (P.R. China) In preparation

ENCS (Japan) Yes

ECL (South Korea) In preparation

Safety and Handling Before considering the use of any chemical read its Material Safety Data Sheet (MSDS) thoroughly for safety and toxicological data as well as for information on proper transportation, storage and use. The Material Safety Data Sheet is available after registration on our website http://www.dynasylan.com or upon request from your local representative.

Packaging and Storage Dynasylan

® SIVO 110 is supplied in 25 kg PE drums and 200 kg PE-inlined steel drums.

Due to its water content Dynasylan

® SIVO 110 must be stored above freezing temperature.

Storage temperatures must not exceed 40 °C.

In sealed containers Dynasylan® SIVO 110 has a shelf life of 12 months.

Dynasylan SIVO 110-EN-2008-03

dynasylan sivo 110 e - camsi-x - empresa especializada … · fax: +49-69-218-3967 ... dynasylan ®...

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